Mn Drug Price Transparency MCP server

@pipeworx/mn-drug-price-transparency

Minnesota manufacturer drug price-growth and new-drug-launch disclosures — the Minnesota half of the fleet #3245 state WAC-transparency survey. See mcps/ca-drug-price-transparency/README.md for the full per-state survey.

Part of Pipeworx — an MCP gateway connecting AI agents to 1847+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

Tools

disclosures of a reported WAC (list price) increase, filed under Minnesota's Prescription Drug Price Transparency program.

• mnrxprice_growth(drug?, manufacturer?, ndc?, limit?) — manufacturer

disclosures of a new drug launched above Minnesota's reporting threshold.

• mnrxnewdruglaunches(drug?, manufacturer?, limit?) — manufacturer

Both answer from a periodically-refreshed table (not a live query — Minnesota publishes no API) and every response carries dataasof.

Auth

Keyless.

Data sources

Transparency program (Minn. Stat. 62J.84) — two periodic snapshot files: drugs with a reported WAC price increase, and new drugs launched above the reporting threshold. Not a per-year archive like California's CTRx program (see mcps/ca-drug-price-transparency), and no query API — refreshed by scripts/ingest-mn-rx-transparency.mjs.

• Minnesota Department of Health (MDH), Prescription Drug Price

Traps

MDH's export uses the literal text "NULL" as its missing-value sentinel (confirmed 2026-10-18 on Patent Expiration Date etc, each paired with a same-row ... Not Applicable Indicator = 1) — a real ingest trap, since "NULL" is a non-empty, truthy string in JS and would otherwise be stored as the four literal characters rather than null. The parser checks for it explicitly.

Some narrative free-text fields (e.g. Price Increase Factors) already carry mojibake in MDH's own source file — mis-decoded punctuation like doesn’t for "doesn't". This is MDH's export, not something this ingest introduces; it is preserved as-is rather than guessed at, because a wrong re-encoding guess is worse than a visibly broken apostrophe.

No stable natural key. The same NDC recurs across multiple price-growth reports over time with no report id, so both tables use a surrogate bigserial key and a full-snapshot replace rather than an upsert.

A same-day rerun used to duplicate every row (found 2026-10-19, promoting this pack out of mcps/incubator/): the delete-stale step ran AFTER insert and only removed rows STRICTLY OLDER than the current dataasof, so dispatching the refresh workflow twice before MDH republishes inserted a second full copy and deleted nothing. Fixed by deleting everything at or before the current dataas_of BEFORE inserting — see scripts/ingest-mn-rx-transparency.mjs's header.

MDH's CDN 403s a bare curl/fetch with no identifying User-Agent — the exact same URL with one set returns 200. Not an auth wall; checked in scripts/ingest-mn-rx-transparency.mjs's UA constant.

Refresh

.github/workflows/mn-rx-transparency-refresh.yml runs monthly and on workflow_dispatch: ingest, then install the pack's workspace deps, then smoke the pack against the freshly loaded table with real credentials (GitHub Actions secrets only — no agent machine holds the Supabase service key).

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "mn-drug-price-transparency": {
      "url": "https://gateway.pipeworx.io/mn-drug-price-transparency/mcp"
    }
  }
}

What this endpoint actually serves

Shortened. The full README is on GitHub.